Home / 201,601,609.40-302,189,837.70-78,732,450.20

Finding the Fourth Proportional to 201,601,609.40, 302,189,837.70 and 78,732,450.20

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Solution

The fourth proportional to 201,601,609.40, 302,189,837.70 and 78,732,450.20 is: 118,015,656.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,601,609.40 : 302,189,837.70 = 78,732,450.20 : x
  2. Step 2: Convert to fraction form
    201,601,609.40/302,189,837.70 = 78,732,450.20/x
  3. Step 3: Cross multiply
    201,601,609.40x = 302,189,837.70 × 78,732,450.20
  4. Step 4: Simplify right side
    201,601,609.40x = 23,792,146,347,661,332
  5. Step 5: Solve for x
    x = 23,792,146,347,661,332/201,601,609.40
  6. Step 6: Final answer
    x = 118,015,656.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.